Engine Seals TRIZ Cases

A threadless clamping structure uses a rotating pillar and elastic component to secure electronic device housings without threaded posts.

Segmented elastic buffers absorb impact and distribute baggage weight, preventing damage to the cargo bed lower edge during loading.

A seal member with a resiliently flexible intermediate portion maintains shaft contact during pivot movement.

Dynamic sealing system adjusts barrier fluid pressure via feed line valves, reducing response time and cost across multiple subsea pumps.

A U-shaped split ring seal dynamically adjusts its radial position to maintain optimal clearance between rotating and stationary components.

External actuator drives transmission couplings to axially displace the static seal, maintaining lubrication and cooling conditions during operation.

Compressible ribs and stepped edges block water infiltration, preventing condensation damage to internal lock components.

Angled T-shaped gasket joints disperse compression stress to protect separators from damage while maintaining airtightness.

Radial ribs constrain a high height-to-width ratio annular column, reducing sealing force and preventing flange brinelling in ultra-high vacuum systems.

Curved gasket protrusions match groove curvature to increase contact area and frictional force against misalignment.

Rust-resistant pigments in the adhesive and rubber layers block electrolyte permeation, preventing blistering without hexavalent chromium.

Integrating the sliding body with the seal carrier wall eliminates rivet preload stress and failure risks while maintaining mechanical integrity.

Annular projections lock the disc brake seal within the cylinder groove to maintain consistent positioning during piston movement.

Radially extending retention tabs engage groove notches to secure arcuate leaf seals, eliminating tack welding and drilling operations.

Segmented membranes with distinct axial lengths prevent air penetration and reduce friction losses under high pressure fluctuations.

Merged weather strip and trim components with geometric alignment members resolve installation precision trade-offs in vehicle door assemblies.

Welded radial webs reduce weight and material consumption while maintaining structural integrity in turbomachine seal assemblies.

Segmented inner and outer rings counteract temperature-induced seal growth, reducing fluid flow and improving lock-up clutch responsiveness.

A non-asbestos gasket uses a corrugated metal core layered with expanded graphite to achieve high conformability.

A resilient seal with a hollow second portion deforms to fit gaps.

Annular seal body uses pressure to urge sealing surfaces into contact, reducing leakage across interfaces.

A latch structure couples a tonneau cover rail to a clamp via a rotating connecting member that engages laterally-offset locking positions.

A unitary metal face seal assembly integrates rotating and stationary members within a single casing to maintain fluid containment.

A mechanical seal uses a ring-shaped projection to push packing against a stationary sealing ring for stable contact.

A resiliently flexible skirt biases into a groove to maintain a fluid-tight seal between mating filter parts.

Dissolvable sheath protects fragile core during spinning to resolve strength trade-offs.

Thermal expansion closes the gap between bristles and the sealing surface, eliminating directional rotation limits and preventing bristle kinking.

Woven pile fabric shrinks during installation and springs back to block powder leakage while eliminating heat generation from mechanical friction.

Outer and bottom foams contact flange surfaces to reduce attachment force while preventing seal separation.

An asymmetric banded ring applies radial pressure to distort a mechanical seal face, interrupting harmonic vibrations that cause squealing noise.

A limiting protrusion on the side-plate prevents seal extrusion and leakage by controlling clamping force.

A sealing plug profile uses a central web to separate base hollow spaces, creating a mechanical retention system that simplifies assembly.

Oblique sub-lips on a vehicle glass run prevent seal lip separation from door glass during vibration, reducing abnormal noise.

A door weather strip lever rotates the sealing portion on the vehicle body panel to minimize sliding friction during closure.

A C-shaped scraper sits between dust and oil seals to slide against the inner tube.

Segmented seals prevent blowback and leakage in sucker rod pumps, extending operating duration under harsh conditions.

An outside-type mechanical seal positions sealing elements externally to eliminate flushing lines and reduce thermal deformation in high-temperature pumps.

Cutouts in the gasket seal enable volume transformation under compression, reducing wear on components caused by deflection in closed positions.

A mechanical seal device uses removable ceramic rings on polymeric supports to ensure reliable sealing contact between rotating and stationary units.

Pressurized gas in the heat shield cavity creates a barrier that reduces oil leakage across seals and protects downstream components.

An inflatable seal expands to fill the gap between a sectional door apron and frame, creating a robust physical barrier.

Sliding keys constrain radial movement of diaphragm and head flange within the casing.

Wave spring between cartridges maintains seal contact in gas turbine engines.

Linear beads on gasket plates reduce fastening stress concentration between fixture and sealing holes.

Radiation inspection detects voids during rotation to minimize waste while ensuring complete sealing.

Variable friction holding lip stabilizes vehicle trim attachment on thin flanges while reducing insertion force for thick sections.

Curved partial impeller grooves prevent casing dam erosion while maintaining required cooling fluid flow rates.

Segmented elastomeric boots and retaining clips seal guide pins against dirt ingress while accommodating axial movement for pad wear.

A gate valve sealing system uses a composite thermoplastic insert and elastomeric ring to reduce torque.